heatmap but with 2 values, one has positive and negative value (positive value = blue, negative value = red) and one is pvalue (the color graduates) in matlab

main.m
% Generate sample data
data = [randn(50, 50)*2 + 1, randn(50, 50)*2 - 1]; % Positive and negative values
pvalue = abs(randn(50, 50)*0.1); % P values

% Create a heatmap with positive/negative values
heatmap(data, 'Colormap', flipud(diverging_map(10)), 'ColorLimits', [-6, 6]);

% Add pvalue to the heatmap
hold on;
[imageData, xData, yData] = heatmap(pvalue, 'Colormap', colormap('pink'), 'ColorbarVisible', 'off');
cdata = imageData.CData;
cdata(cdata ~= 0) = nan;
set(imageData, 'AlphaData', double(isnan(cdata)));
set(imageData, 'XData', xData, 'YData', yData);
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main.m
function cmap = diverging_map(n)
% Create a colormap with n colors going from blue to red (RGB)
% by Fabrizio Conti (2021)

if nargin < 1
    n = 64;
end

cmap = zeros(n, 3);

for i = 1:n
    t = (i-1)/(n-1);
    r = 1 - max(0, (t - 0.5) * 2);
    b = max(0, (t - 0.5) * 2);
    g = 1 - (r+b);
    cmap(i, :) = [r, g, b];
end
end
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